On Tue, 23 Feb 2010, Eugen Leitl wrote:
In terms of scaling, does zfs on OpenSolaris play well on multiple cores? How much disks (assuming 100 MByte/s throughput for each) would be considered pushing it for a current single-socket quadcore?
In any large storage system, most disks are relatively unused. It is not normal for all disks to be pumping through their rated throughput at one time. PCIe interfaces are only capable of a certain amount of bandwidth and this will place a hard limit on maximum throughput. There are also limits based on the raw memory bandwidth of the machine.
OpenSolaris is the king of multi-threading and excels on multiple cores. Without this fine level of threading, SPARC CMT hardware would be rendered useless.
With this in mind, some older versions of OpenSolaris did experience a thread priority problem when compression was used.
Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
